(;GM[1]FF[4]SZ[19]
GN[Descent first]
PC[https://senseis.xmp.net/?GokyoShumyoSection1Problem7/Solution]AP[GoWiki:2009]
DT[2023-01-12]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection1Problem7/Solution

Descent first]
PL[B]

AB[nb][rb][mc][nc][oc][qc][pd][qd][ne][pe][of][pf][qg][rg]
AW[na][ra][kb][mb][ob][pb][qb][lc][pc][rc][ld][mf][qf][rf][ng][pg][ph][qh]

;B[sb]C[B1]MN[1]
;W[se]C[W2]MN[2]
;B[re]C[B3]MN[3]
;W[sd]C[W4]MN[4]
;B[rd]C[B5]MN[5]
;W[rh]C[W6]MN[6]
;B[sc]C[B7]MN[7]
;W[sf]C[W8]MN[8]

;
)
